Stellar magnitude is a measure of the brightness of a star as seen from Earth. It is expressed in a logarithmic scale, where a lower number indicates a brighter star. For example, a star with a magnitude of 1 is brighter than a star with a magnitude of 6. This system helps astronomers compare the brightness of different stars and celestial objects. There are two main types of stellar magnitude: apparent magnitude and absolute magnitude. Apparent magnitude refers to how bright a star appears from our perspective, while absolute magnitude measures how bright a star would be if it were located at a standard distance of 10 parsecs from Earth.